arch/csky/abiv2/inc/abi/pgtable-bits.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 // Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
   3
   4 #ifndef __ASM_CSKY_PGTABLE_BITS_H
   5 #define __ASM_CSKY_PGTABLE_BITS_H
   6
   7 /* implemented in software */
   8 #define _PAGE_ACCESSED          (1<<7)
   9 #define PAGE_ACCESSED_BIT       (7)
  10
  11 #define _PAGE_READ              (1<<8)
  12 #define _PAGE_WRITE             (1<<9)
  13 #define _PAGE_PRESENT           (1<<10)
  14
  15 #define _PAGE_MODIFIED          (1<<11)
  16 #define PAGE_MODIFIED_BIT       (11)
  17
  18 /* implemented in hardware */
  19 #define _PAGE_GLOBAL            (1<<0)
  20
  21 #define _PAGE_VALID             (1<<1)
  22 #define PAGE_VALID_BIT          (1)
  23
  24 #define _PAGE_DIRTY             (1<<2)
  25 #define PAGE_DIRTY_BIT          (2)
  26
  27 #define _PAGE_SO                (1<<5)
  28 #define _PAGE_BUF               (1<<6)
  29
  30 #define _PAGE_CACHE             (1<<3)
  31
  32 #define _CACHE_MASK             _PAGE_CACHE
  33
  34 #define _CACHE_CACHED           (_PAGE_VALID | _PAGE_CACHE | _PAGE_BUF)
  35 #define _CACHE_UNCACHED         (_PAGE_VALID)
  36
  37 #endif /* __ASM_CSKY_PGTABLE_BITS_H */